Name: Surge Protective Devices SPD
Brand: CNLONQ
SKU: SPDS
Availability: InStock

Surge Protective Devices SPD

A Surge Protective Device (SPD) is designed to protect electrical and solar power systems from transient over-voltages caused by lightning strikes, grid switching, or power surges. It safely diverts excess voltage to earth, preventing damage to inverters, batteries, charge controllers, appliances, and sensitive electronics. SPDs are essential in both AC and DC solar installations and are typically installed in distribution boards, combiner boxes, and inverter panels.

TECHNICAL DETAILS
Manufacturer	FEEO, CNLONG, LIKET
Poles	2POLE, 3POLE, 4POLE
System Type	‎AC SPD / DC SPD (model dependent)
Voltage Rating	AC SPD: 230V / 400V AC DC SPD: 500V / 600V / 1000V / 1500V DC (varies by model)
Discharge Capacity:	High surge discharge rating (e.g. 20kA – 40kA or higher)
Response Time	Very fast (nanosecond-level response)
Protection Level	Low residual voltage for effective equipment protection
Mounting	DIN-rail mount (35mm standard)
Standards / Certification	‎ IEC 61643‐11 / EN 61643‐11 compliance
Indicator Visual status	‎Indicator (green/red) for end-of-life or fault
Typical Installation Points	DC side: PV strings, combiner boxes, battery inputsAC side: Inverter output, main distribution board